A type of Kriyā (urge);
the propensity for readily indulging in the activities of mutilating, cutting into pieces, Hiṃsā (injuring or killing the living beings) or for rejoicing at the activities of Hiṃsā etc., indulged in by others.
chedanabhedanavisramsanādikriyāparatvam, anyena cārambhe kriyamāṇe praharṣa ārambhakriyā.
(TaVā 6.5.11)